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TrackTheory Your one-stop shop for performance parts in Australia. Quality parts from trusted brands.
🇦🇺 Australian Owned & Operated
ABN: 33 689 482 504
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© 2026 TrackTheory. All rights reserved. Built for speed.
TrackTheory acknowledges the Traditional Custodians of the lands on which we operate.
RTS M75, M76,M78 Differential, Gear Ring and Pinion 3.90:1, For Holden Commodore V6 ,V8, VL Turbo, VN, VP, VR, VS, For Ford BA, BF, EB -AU Non Turbo | TrackTheory
RTS · RTS-M78-390 RTS · RTS-M78-390 RTS M75, M76,M78 Differential, Gear Ring and Pinion 3.90:1, For Holden Commodore V6 ,V8, VL Turbo, VN, VP, VR, VS, For Ford BA, BF, EB -AU Non Turbo $521
incl. GST · ships AU-wide ● Out of stock
Australian-owned. Stocking circuit racing parts, track-day essentials, and performance upgrades.
Home Shop Garage Account “The bite is sharp from the first stop. Compounds where they should be when the rotors come up to temperature.”
Specifications
On the spec sheet. Spec sheet coming — contact support for full spec details. Fitment
Will this fit? Fitment data still being indexed for this product. Ask BuildBot for a fit-check against your vehicle.
Pairs well with
Other parts in this build. RTS RTS · RTS-M78-323 RTS M75, M76, M78 Differential ,Gear Ring and Pinion 3.23:1, For Holden Commodore V6 & V8, VL Turbo,VN,VP,VR,VS, For Ford BA,BF,EB,to AU Non Turbo, $270
© 2026 TrackTheory · ABN 33 689 462 504 Built in Adelaide · Shipping AU-wide
